US RE48,744 E1Granted

Object lifting, pulling and digging apparatus

AssigneeDanuser LLC

InventorGary J. Niekamp

Life of this patent

Estimating the term…

Abstract

An object lifting, pulling and digging apparatus has a pair of jaws that can be opened to enable positioning the jaws around a post, tree, and/or bush then closed around the post, tree, and/or bush. The jaws can then be raised to pull the post, tree, and/or bush from the ground. The jaws of the apparatus can also be closed and angled downwardly to drive the distal ends of the jaws into the ground, where the jaws can then be moved upwardly to dig the post, tree, and/or bush from the ground. The apparatus can easily be attached to a vehicle equipped with a universal quick attach hitch and having auxiliary hydraulics, for example, a “skid steer” type farm or construction vehicle.

Claims20

Dependent claims

An object lifting, pulling and digging apparatus comprising:

a base;
a first jaw having a length with opposite proximal and distal ends, the first jaw being constructed as pivotally coupled to the base and including a single, generally flat panel with an elongate, triangular configuration that extends from an apex of the triangular configuration at the distal end of the first jaw to a base of the triangular configuration at a proximal portion of the first jaw adjacent the proximal end of the first jaw;
a second jaw having a length with opposite proximal and distal ends, the second jaw being constructed as pivotally coupled to the base and including a single, generally flat panel with an elongate, triangular configuration that extends from an apex of the triangular configuration at the distal end of the second jaw to a base of the triangular configuration at a proximal portion of the second jaw adjacent the proximal end of the second jaw,
a first pin connecting the first jaw to the base adjacent the proximal end of the first jaw for pivoting movement of the first jaw about the first pin relative to the base;
a second pin connecting the second jaw to the base adjacent the proximal end of the second jaw for pivoting movement of the second jaw about the second pin relative to the base;
a first saw tooth section secured on a top surface of the first jaw, the first saw tooth section projecting vertically upwardly from the length of the first jaw, the first saw tooth section being constructed as a single, generally flat panel with an elongate, triangular configuration that extends from an apex at a distal end of the triangular configuration of the first saw tooth section adjacent the apex of the triangular configuration of the first jaw, to a base of the triangular configuration of the first saw tooth section at a proximal portion of the first saw tooth section adjacent the proximal portion of the first jaw;
a second saw tooth section secured to a top surface of the second jaw, the second saw tooth section projecting vertically upwardly from the length of the second jaw, the second saw tooth section being constructed as a single, generally flat panel with an elongate, triangular configuration that extends from an apex at a distal end of the triangular configuration of the second saw tooth section adjacent the apex of the triangular configuration of the second jaw, to a base of the triangular configuration of the second saw tooth section at a proximal portion of the second saw tooth section adjacent the proximal portion of the second jaw;
and,
an actuator connected to at least one of the first jaw and the second jaws configured to pivot at least one of the first jaw or the second jaw relative to the base.

6 more elements

An object lifting, pulling and digging apparatus comprising:

a base;
a first jaw having a length with opposite proximal and distal ends, the first jaw being constructed as pivotally coupled to the base and including a single, generally flat panel with an elongate, triangular configuration that extends from an apex of the triangular configuration at the distal end of the first jaw to a base of the triangular configuration at a proximal portion of the first jaw adjacent the proximal end of the first jaw;
a second jaw having a length with opposite proximal and distal ends the second jaw being constructed as pivotally coupled to the base and including a single, generally flat panel with an elongate, triangular configuration that extends from an apex of the triangular configuration at the distal end of the second jaw to a base of the triangular configuration at a proximal portion of the second jaw adjacent the proximal end of the second jaw;
a first pin connecting the first jaw to the base adjacent the proximal end of the first jaw for pivoting movement of the first jaw about the first pin relative to the base;
a second pin connecting the second jaw to the base adjacent the proximal end of the second jaw for pivoting movement of the second jaw about the second pin relative to the base;
a first saw tooth section secured on a too top surface of the first jaw, the first saw tooth section projecting vertically upwardly from the length of the first jaw, the first saw tooth section being constructed as a single, generally flat panel with an elongate, triangular configuration that extends from an apex at a distal end of the triangular configuration of the first saw tooth section adjacent the apex of the triangular configuration of the first jaw, to a base of the triangular configuration of the first saw tooth section at a proximal portion of the first saw tooth section adjacent the proximal portion of the first jaw;
a second saw tooth section secured to a top surface of the second jaw, the second saw tooth section projecting vertically upwardly from the length of the second jaw, the second saw tooth section being constructed as a single, generally flat panel with an elongate, triangular configuration that extends from an apex at a distal end of the triangular configuration of the second saw tooth section adjacent the apex of the triangular configuration of the second jaw, to a base of the triangular configuration of the second saw tooth section at a proximal portion of the second saw tooth section adjacent the proximal portion of the second jaw;
an actuator connected coupled to at least one of the first jaw and the second jaw;
a first gear tooth section on positioned proximate to the base and rotating in concert with the first jaw;
a second gear tooth section on positioned proximate to the base and rotating in concert with the second jaw;
and,
the first gear tooth section and the second gear tooth section being in mesh.

9 more elements

An object lifting, pulling and digging apparatus comprising:

a base;
a first jaw having a length with opposite proximal and distal ends, the first jaw having a straight section of gripping teeth and a curved section of gripping teeth, first jaw pivotally coupled to the base and having a section being constructed as a single, generally flat panel with an elongate, triangular configuration that extends from an apex of the triangular configuration at the distal end of the first jaw to a base of the triangular configuration at a proximal portion of the first jaw adjacent the proximal end of the first jaw;
a second jaw having a length with opposite proximal and distal ends, the second jaw having a straight section of gripping teeth and a curved section of gripping teeth, the second jaw pivotally coupled to the base and having a section being constructed as a single, generally flat panel with an elongate, triangular configuration that extends from an apex of the triangular configuration at the distal end of the second jaw to a base of the triangular configuration at a proximal portion of the second jaw adjacent the proximal end of the second jaw;
a first pin connecting the first jaw to the base adjacent the proximal end of the first jaw for pivoting movement of the first jaw about the first pin relative to the base;
a second pin connecting the second jaw to the base adjacent the proximal end of the second jaw for pivoting movement of the second jaw about the second pin relative to the base;
a first saw tooth section secured on a too top surface of the first jaw, the first saw tooth section projecting vertically upwardly from the length of the first jaw, the first saw tooth section being constructed as a single, generally flat panel with an elongate, triangular configuration that extends from an apex at a distal end of the triangular configuration of the first saw tooth section adjacent the apex of the triangular configuration of the first jaw, to a base of the triangular configuration of the first saw tooth section at a proximal portion of the first saw tooth section adjacent the proximal portion of the first jaw;
a second saw tooth section secured to a too top surface of the second jaw, the second saw tooth section projecting vertically upwardly from the length of the second jaw, the second saw tooth section being constructed as a single, generally flat panel with an elongate, triangular configuration that extends from an apex at a distal end of the triangular configuration of the second saw tooth section adjacent the apex of the triangular configuration of the second jaw, to a base of the triangular configuration of the second saw tooth section at a proximal portion of the second saw tooth section adjacent the proximal portion of the second jaw;
and,
an actuator connected to at least one of the first jaw and the second jaw configured to selectively pivot the first jaw relative to the second jaw.

6 more elements

Dependencies are inferred from the claim text.

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Abstract

An object lifting, pulling and digging apparatus comprising:

a base;
a first jaw having a length with opposite proximal and distal ends, the first jaw being constructed as pivotally coupled to the base and including a single, generally flat panel with an elongate, triangular configuration that extends from an apex of the triangular configuration at the distal end of the first jaw to a base of the triangular configuration at a proximal portion of the first jaw adjacent the proximal end of the first jaw;
a second jaw having a length with opposite proximal and distal ends, the second jaw being constructed as pivotally coupled to the base and including a single, generally flat panel with an elongate, triangular configuration that extends from an apex of the triangular configuration at the distal end of the second jaw to a base of the triangular configuration at a proximal portion of the second jaw adjacent the proximal end of the second jaw,
a first pin connecting the first jaw to the base adjacent the proximal end of the first jaw for pivoting movement of the first jaw about the first pin relative to the base;
a second pin connecting the second jaw to the base adjacent the proximal end of the second jaw for pivoting movement of the second jaw about the second pin relative to the base;
a first saw tooth section secured on a top surface of the first jaw, the first saw tooth section projecting vertically upwardly from the length of the first jaw, the first saw tooth section being constructed as a single, generally flat panel with an elongate, triangular configuration that extends from an apex at a distal end of the triangular configuration of the first saw tooth section adjacent the apex of the triangular configuration of the first jaw, to a base of the triangular configuration of the first saw tooth section at a proximal portion of the first saw tooth section adjacent the proximal portion of the first jaw;
a second saw tooth section secured to a top surface of the second jaw, the second saw tooth section projecting vertically upwardly from the length of the second jaw, the second saw tooth section being constructed as a single, generally flat panel with an elongate, triangular configuration that extends from an apex at a distal end of the triangular configuration of the second saw tooth section adjacent the apex of the triangular configuration of the second jaw, to a base of the triangular configuration of the second saw tooth section at a proximal portion of the second saw tooth section adjacent the proximal portion of the second jaw;
and,
an actuator connected to at least one of the first jaw and the second jaws configured to pivot at least one of the first jaw or the second jaw relative to the base.

6 more elements